View of the Sinyyaya Pillars in the plateau
|Elevation||700 m (2,300 ft)|
|Length||1,000 km (620 mi)|
|Width||200 km (120 mi)|
|Federal subject||Yakutia, Irkutsk Oblast|
|Parent range||Central Siberian Plateau|
|Age of rock||Cambrian and Ordovician|
|Type of rock||Limestone, dolomite, sandstone|
The Lena Plateau, also known as Prilensky Plateau Russian:Приленское плато, Prilenskoye Plato; Yakut : Өлүөнэтээҕи хаптал хайалаах сир), is one of the great plateaus of Siberia. Administratively it is mostly within the Sakha Republic (Yakutia), with a small sector in the Irkutsk Oblast, Far Eastern Federal District, Russia. The plateau is named after the Lena River, which flows across it.(
There are spectacularly eroded rock formations composed of gypsum-bearing and saline limestone, dolomite and, in some places sandstone, in different spots of the plateau. The Lena Pillars, lining the banks of river Lena in the region, are the most well-known of these features. They were declared a UNESCO World Heritage Site in 2012.Other protected areas in the plateau are the Sinyyaya Pillars by river Sinyaya, and the Turuuk Khaya Rocks by the Lyutenge River. The Olyokma Nature Reserve is located on the eastern side, partly within neighboring Aldan Highlands.
The Lena Plateau is located in the southern Sakha Republic, between the Lower Tunguska River in the west and the Amga River in the east. It extends roughly to the north along the left bank of the Lena River for more than 1,000 kilometers (620 mi) with an average width of 200 kilometers (120 mi). The Central Siberian Plateau, is located to the northwest and the Central Yakutian Lowland to the north. The average height of the Lena Plateau surface is between 450 meters (1,480 ft) and 500 meters (1,600 ft). Elevations become slightly higher towards the south of the plateau, reaching a maximum height of 700 metres (2,300 ft) at an unnamed summit. The plateau is located in a permafrost zone where the soil freezes down to hundreds of meters. The Namana, Buotama, Menda, Suola, Kenkeme, Bappagay, Kempendyay, Tatta, Tamma, Peleduy, Nyuya, Pilyuda, Sinyaya, Markha, Lungkha, Ulakhan-Botuobuya, Biryuk and Lyutenge are some of the watercourses having their source in the plateau.
The Lena Plateau occupies a very large area, including parts of the districts of Mirny, Suntar, Verkhnevilyuy, Gorny, Khangalassky, Megino-Kangalassky, Lensky, Olyokmin, Amgin and Aldan in the Sakha Republic, as well as parts of Katanga and Bodaybin districts in the Irkutsk Oblast.
There are taiga forests made up mostly of pine and larch in the higher areas. Wetlands and meadows are common in the river valleys cutting across the plateau.
The plateau is characterized by a harsh continental climate, with long cold winters and sparse amounts of snow. In winter the temperature may drop to −45 °C (−49 °F), and sometimes even down to −60 °C (−76 °F). Summers are moderately warm with temperatures reaching 15 °C (59 °F) to 17 °C (63 °F). Precipitation is between 350 millimeters (14 in) and 450 millimeters (18 in) per year. Most of the yearly precipitation falls in the summer in the form of rain.
Sakha, also known as Yakutia or Yakutiya, and officially known as the Republic of Sakha (Yakutia), is a federal Russian republic.
The Lena is the easternmost of the three great Siberian rivers that flow into the Arctic Ocean. Permafrost underlies most of the catchment, 77% of which is continuous. It is 4,294 kilometres (2,668 mi) long, and has a drainage basin of 2,490,000 square kilometres (960,000 sq mi). The Lena is the eleventh-longest river in the world, and the longest river in Russia.
Aldan is a gold-mining town and the administrative center of Aldansky District of the Sakha Republic, Russia, located in the Aldan Highlands, in the Aldan River basin, on the stream Orto-Sala near its mouth in the Seligdar River, about 470 kilometers (290 mi) south of the republic's capital of Yakutsk. As of the 2010 Census, its population was 21,275.
The Amga is a river in Sakha (Yakutia), Russia. The length of the river is 1,462 kilometres (908 mi). The area of its basin is 69,300 square kilometres (26,800 sq mi). The Amga freezes up in the first half of October and stays under the ice until May. Many different kinds of Fish can be found in the Amga river.
Tommot is a town in Aldansky District of the Sakha Republic, Russia, located on the Aldan River 390 kilometers (240 mi) southwest of Yakutsk, the capital of the republic, and 70 kilometers (43 mi) northeast of Aldan, the administrative center of the district. As of the 2010 Census, its population was 8,057.
Aldansky District is an administrative and municipal district, one of the thirty-four in the Sakha Republic, Russia.
Amginsky District is an administrative and municipal district, one of the thirty-four in the Sakha Republic, Russia. It is located in the southeast of the republic and borders with Churapchinsky District in the north, Ust-Maysky District in the east and southeast, Aldansky District in the south and southwest, and with Khangalassky and Megino-Kangalassky Districts in the northwest. The area of the district is 29,400 square kilometers (11,400 sq mi). Its administrative center is the rural locality of Amga. As of the 2010 Census, the total population of the district was 17,183, with the population of Amga accounting for 38.0% of that number.
Khangalassky District is an administrative and municipal district, one of the thirty-four in the Sakha Republic, Russia. It is located in the center of the republic and borders Megino-Kangalassky District in the east, Amginsky and Aldansky Districts in the south, Olyokminsky District in the southwest, Gorny District in the northwest, and the territory of the city of republic significance of Yakutsk in the north. The area of the district is 24,700 square kilometers (9,500 sq mi). Its administrative center is the town of Pokrovsk. As of the 2010 Census, the total population of the district, excluding its administrative center, was 24,557.
Mirninsky District is an administrative and municipal district, one of the thirty-four in the Sakha Republic, Russia. It is located in the west of the republic and borders Olenyoksky District in the north and northeast, Nyurbinsky and Suntarsky Districts in the east, Lensky District in the south, and Irkutsk Oblast and Krasnoyarsk Krai in the west. The area of the district is 165,800 square kilometers (64,000 sq mi). Its administrative center is the town of Mirny. As of the 2010 Census, the total population of the district was 38,802.
Olyokminsky District is an administrative and municipal district, one of the thirty-four in the Sakha Republic, Russia. It is located in the southwest of the republic and borders with Verkhnevilyuysky District in the north, Gorny and Khangalassky Districts in the northeast, Aldansky District in the east, Neryungrinsky District in the southeast, Zabaykalsky Krai in the southwest, Irkutsk Oblast and Lensky District in the west, and with Suntarsky District in the northwest. The area of the district is 160,800 square kilometers (62,100 sq mi). Its administrative center is the town of Olyokminsk. Population: 26,785 (2010 Census); 27,563 ; 30,938 (1989 Census). The population of Olyokminsk accounts for 35.4% of the district's total population.
The Amur–Yakutsk Mainline, abbreviated to AYaM is a partially complete railway in eastern Russia, linking the Trans-Siberian Railway and Baikal–Amur Mainline with the Sakha Republic.
Olyokma Nature Reserve is a Russian 'zapovednik' located south of the middle reaches of the Lena River on the right bank of its second largest tributary - the Olyokma River at the junction of the Aldan Highlands and Prilensky Plateau in Olyokminsky District of the Sakha Republic (Yakutia). The area is remote and relatively undisturbed, being 80 km from a town.
The Suola is a river in the Sakha Republic, Russia. It is a right tributary of the Lena and has a length of 224 km (139 mi).
The Sinyaya is a river in the Sakha Republic, Russia. It is a left tributary of the Lena. It is 597 kilometres (371 mi) long, and has a drainage basin of 30,900 square kilometres (11,900 sq mi).
The Aldan Highlands, or Aldan Plateau are a mountainous area in the Sakha Republic, Far Eastern Federal District, Russia.
The Yudoma-Maya Highlands (Russian: Юдомо-Майское нагорье, tr.Yudomo-Maiskoye Nagorye are a mountainous area in the Sakha Republic and Khabarovsk Krai, Far Eastern Federal District, Russia.
The Anabar Plateau is a mountain plateau in Krasnoyarsk Krai and the Sakha Republic (Yakutia), Siberia, Russia.
The Vilyuy Plateau is a mountain plateau in Krasnoyarsk Krai and the Sakha Republic (Yakutia), Siberia, Russia. It is a part of the Central Siberian Plateau and it is made up mainly of the upper course section of the Vilyuy River.
The Central Yakutian Lowland or Central Yakutian Lowlands, also known as Central Yakut Plain or Vilyuy Lowland, is a low alluvial plain in Siberia, Russia.
The Patom Highlands are a mountainous area in Eastern Siberia, Russia. Administratively most of the territory of the uplands is part of Irkutsk Oblast, with a smaller section in northern Transbaikal Krai.